Search for standard model Higgs boson production in association with a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>W</mml:mi></mml:math>boson at CDF

We present a search for standard model Higgs boson production in association with a $W$ boson in proton-antiproton collisions ($p\overline{p}\ensuremath{\rightarrow}{W}^{\ifmmode\pm\else\textpm\fi{}}H\ensuremath{\rightarrow}\ensuremath{\ell}\ensuremath{\nu}b\overline{b}$) at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector which correspond to an integrated luminosity of approximately $1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. We select events consistent with a signature of a single lepton (${e}^{\ifmmode\pm\else\textpm\fi{}}/{\ensuremath{\mu}}^{\ifmmode\pm\else\textpm\fi{}}$), missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with a secondary vertex tagging method and a neural network filter technique. The observed number of events and the dijet mass distributions are consistent with the standard model background expectations, and we set 95% confidence level upper limits on the production cross section times branching ratio ranging from 3.9 to 1.3 pb for Higgs boson masses from 110 to $150\text{ }\text{ }\mathrm{GeV}/{c}^{2}$, respectively.

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